Glazing-bar.



Patented Jan. 7,1902.

- No. 690,732. I

" n. J. JARVIS, J. W.WADKIN & T. s. KING.

GL -AZING BAR.

A umion fllod m a, 1901.

(in Model.)

n: Nonnis Fm no. FNOTU-LITNO" WAS NITED I STATES PATENT Orricn. I

DENZIL JOHN JARVIS AND JOSEPH VVILLIAM WADKIN, OF LEICESTER, AND THOMASSCOTT KING, OF COLCHESTER, ENGLAND.

GLAZlNGj-BAR.

SPECIFICATION forming part of Letters Patent No. 690,732, dated January7, 1902.

Application filed duly 8, 1901. Serial No. 67,497. (No model.) i

Colchester, in the county of Essex, England,

subjects of the King of Great Britain and Ireland, have invented certainnew and useful Improvements in Glazing-Bars, (for which we have madeapplication for Letters Patent in Great Britain, No. 23,499, and'datedDecember 10, 1900,) of which the followingis a specification. I

This invention relates to. improvements in connection with mechanicalglazing, the object being to provide a glazing-bar which will hold glasssecurely against any pressure which may be exerted either internally orexternally.

In carrying our invention into effect we construct a metal bar with acore of wroughtiron or other suitable material and provide it on itsouter surface with lead, lead alloy, or other yielding andnon-'corrodible envelop material which is pressed by hand or drawn' orforced on by machinery or by other wellknown processes. 7

I In the accompanying sheet of explanatory drawings, Figure 1 is asectional elevation of one form of our improved bar with the hinding-flaps in one position. Fig. 2 is a similar view with the glass inpositiom Fig. 3 is a similar view with our. end stops in position. Figs.4: and 5 are detail views of such end stops. Fig. 6 is a side elevationof a bar with the end stops on each end. Figs. 7 and 8 are modifiedformsof our improved'glazing-bars.

We make the core a with projections both on the upper and lowersurfaces, the lower projections cbeing to form a bed or support for theglass plate 2, while the upper, d, serves as a keep or carrier for theflaps or bindingstrips e, of envelop material, which we form thereon'forholding in position the upper surface of the glass plate z.

We thicken our envelop or metal casing 12, inclosing the core on each ofthe lower projections c, which receive the glass, so as to provide acorrect and true bed for the same.

Wesometimes provide independent rib-like projections f, of envelopmetal," upon the'lower carrying-surfaces of the bar, so as to give additional support to the plate when placed in position, as shown in Fig.8. Upon the upper projecting members of the bar we form.

readily pressed down onto the top of the glass and to make a jointsufficient toprevent rain and the like passing into the inner spaces oneach side of the bar in addition to their function for holding down theglass upon its lower bed. By this improved arrangement of cover-v ingthe metal cores (1 and the special form of bed which we thereby producewe are enabled to transmit the external pressure onto the glass directlyto the bearing-pads and onto the'lower part of the core-bar, while anyinternal-pressure which arises is transmitted directly through the rootof the binding-flaps to the upper part of the bar or core, thus securingthe glass equally against internal and external movement. 1

' We insert the glass onto the bar preferably in one of two ways bysliding it endwise between the two bars orputting it in from the faceina manner to admit of-its being pushed under the lead flap until theedge of the glass touches the center web of the glazing-bar and thenbeing drawn out to admit of its insertion on the opposite bar untilaclearance-spacey between the edges of the glass and the inner portionsof the centerwebs of the bars is equalized. To facilitate theequalization of this clearance-space, we provide projecting snugs h onthe end stops k, which we secure, by means of a screw or thelike, on'theends of the bars. We provide pads m, preferably of lead, on the stopsfor the glass sheet to bed against.

We modify the sectional shape of the core which is to be produced tosuit the strength and type of bar that is required, providing, however,binding flaps or edges to press downward upon the upper surface of theglass, While arranging extended bed-like supports on the envelopmaterial on the lower members of the bar similarly to the mannerhereinbefore described.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. A glazing-bar having a core of hard metal, said core being formedwith a web, the lower projections c and the overhanging projections (Zextending from. said web and a soft-meta1 covering for said core havingflaps extending therefrom at the points where the upper parts of thecore overhang, substantially as described.

2. In a glazing-bar, a stop plate or bracket 26 DENZIL JOHN JARVIS.JOSEPH WILLIAM WADKIN. THOMAS SCOTT KING.

Witnesses to the signatures of Denzil John Jarvis and Joseph WilliamWadkin:

WALTER W. BALL, Y. H001). \Vitnesses to the signature of Thomas ScottKing:

WALTER J. SKERTEN, ALBERT E. PARKER.

